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What's the big difference between the NGK TR6 and R5671-A8

Discussion in 'Non-Turbo Tech questions' started by rick90lx, Sep 21, 2012.

  1. rick90lx

    Joined:
    Aug 6, 2003
    Both of those plugs I believe are listed as being 1 step colder than factory. I'm running old school highports and was looking for some plugs, a friend mentioned he's been running the TR6 in everything but I didn't see them listed in the sparkplug FAQ thread. Any advice?

    Edit: I may have just came across something that said the TR6 is a 4.6 plug. Maybe I got bad info from my buddy?
     
    rick90lx, Sep 21, 2012
    #1

  2. Disney Lincoln

    Joined:
    Feb 14, 2003
    Tapered seat vs gasket seat comes to mind.... It won't work in your heads.
     
    Disney Lincoln, Sep 24, 2012
    #2

  3. rick90lx

    Joined:
    Aug 6, 2003
    Thanks, I overlooked that.
     
    rick90lx, Sep 24, 2012
    #3

  4. tbird

    Joined:
    Sep 1, 2004
    5671-XX is a non extended tip plug and gasket seat.

    Not sure if they make non extend tip TR6. All the TR6 ive had where extended tip and taper seat.
     
    tbird, Sep 24, 2012
    #4
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